74LS74A
74LS74A is DUAL D-TYPE POSITIVE EDGE-TRIGGERED FLIP-FLOP manufactured by Motorola Semiconductor.
DUAL D-TYPE POSITIVE EDGE-TRIGGERED FLIP-FLOP
The SN54 / 74LS74A dual edge-triggered flip-flop utilizes Schottky TTL circuitry to produce high speed D-type flip-flops. Each flip-flop has individual clear and set inputs, and also plementary Q and Q outputs.
Information at input D is transferred to the Q output on the positive-going edge of the clock pulse. Clock triggering occurs at a voltage level of the clock pulse and is not directly related to the transition time of the positive-going pulse. When the clock input is at either the HIGH or the LOW level, the D input signal has no effect.
LOGIC DIAGRAM (Each Flip-Flop)
SET (SD)4 (10)
CLEAR (CD) 1 (13)
CLOCK 3 (11) D 2 (12)
Q 5 (9)
Q 6...
